CN218822919U

CN218822919U - Engine pressure sensor with adjustable pressure measuring range

Info

Publication number: CN218822919U
Application number: CN202223345349.8U
Authority: CN
Inventors: 朱宪伟; 许微微; 王小云; 李娟�
Original assignee: Nanjing Delphi Auto Parts Co ltd
Current assignee: Nanjing Delphi Auto Parts Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-07
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to a pressure sensor technical field specifically is an engine pressure sensor of adjustable pressure measurement scope, including the pressure sensor body, the inside of pressure sensor body leans on the standing groove of having seted up of one end, the bottom inner wall of standing groove is installed and is placed the board, the conducting rod is installed to corresponding one side inner wall of standing groove, the top of pressure sensor body is provided with three carriage release levers of group by the position activity of one side, and the bottom of three carriage release levers all installs mounting disc, three groups resistance strain gauge is all installed to the bottom of mounting disc, and the spout has all been seted up to the surface of three carriage release levers of group, and the top inner wall and the bottom inner wall of three group's spouts all are provided with the magnet piece. The pressure measuring range of the existing engine pressure sensor can be effectively fixed through the arrangement of the conductive rod, the moving rod, the mounting disc, the resistance strain gauge, the sliding chute, the magnet block, the supporting rod, the fixing plate and other parts, and the problem that corresponding adjustment cannot be conveniently carried out is solved.

Description

Engine pressure sensor with adjustable pressure measuring range

Technical Field

The utility model relates to a pressure sensor technical field specifically is an engine pressure sensor of adjustable pressure measurement scope.

Background

A pressure sensor is a device or apparatus that can sense a pressure signal and convert the pressure signal into a usable output electrical signal according to a certain rule, and the pressure sensor generally comprises a pressure sensitive element and a signal processing unit. According to different test pressure types, the pressure sensor can be divided into a gauge pressure sensor, a differential pressure sensor and an absolute pressure sensor, is the most common sensor in industrial practice, is widely applied to various industrial automatic control environments, and relates to various industries such as water conservancy and hydropower, railway traffic, intelligent buildings, production automatic control, aerospace, military industry, petrifaction, oil wells, electric power, ships, machine tools, pipelines and the like.

When the existing engine pressure sensor is used for pressure detection, the pressure detection range is limited frequently, so that the data is not accurate enough when the pressure detection is carried out, and therefore the pressure detection range of the pressure sensor needs to be adjusted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an engine pressure sensor of adjustable pressure measurement scope to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an engine pressure sensor of adjustable pressure measurement scope, includes the pressure sensor body, the standing groove has been seted up by one end to the inside of pressure sensor body, the bottom inner wall of standing groove is installed and is placed the board, the conducting rod is installed to corresponding one side inner wall of standing groove, the top of pressure sensor body is provided with three traveling arms of group by the position activity of one side, and the mounting disc is all installed, three groups to the bottom of three traveling arms of group the resistance foil gage is all installed to the bottom of mounting disc, and the spout has all been seted up to the surface of three traveling arms of group, and the top inner wall and the bottom inner wall of three group's spouts all are provided with the magnet piece, the bracing piece is all installed by corresponding one side of corresponding traveling arm in the top of pressure sensor body, and the fixed plate is all installed by the position on top to corresponding one side of corresponding bracing piece.

Preferably, a display screen is installed at a position close to one side of the top end of the pressure sensor body, and a cable is arranged at one end of the pressure sensor body.

Preferably, the surface mounting of conducting rod has three sets of spacing rings, and the support column is all installed to the bottom of three sets of spacing rings, three sets of the bottom of support column all is fixed mutually with the top corresponding position of placing the board.

Preferably, the corresponding ends of the three groups of fixing plates respectively extend into the corresponding chutes, and the corresponding fixing plates are respectively in sliding connection with the corresponding chutes.

Preferably, the top of pressure sensor body is leaned on the position of three groups of carriage bars and has all been seted up and run through the groove, and just three groups of carriage bars run through in the top inner wall of standing groove through the groove respectively.

Preferably, the three groups of resistance strain gauges are arranged right above the conducting rod, and the bottom surfaces of the three groups of resistance strain gauges are all arranged in an arc shape.

Compared with the prior art, the beneficial effects of the utility model are that:

the pressure measuring range of the existing engine pressure sensor can be effectively fixed through the arrangement of the conductive rod, the moving rod, the mounting disc, the resistance strain gauge, the sliding chute, the magnet block, the supporting rod, the fixing plate and other parts, and the problem that corresponding adjustment cannot be conveniently carried out is solved.

Drawings

Fig. 1 is a schematic perspective view of the main body of the present invention.

Fig. 2 is a schematic cross-sectional view of the pressure sensor body according to the present invention.

Fig. 3 is a schematic structural perspective view of the pressure sensor body of the present invention.

Fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: 1. a pressure sensor body; 11. a display screen; 12. a cable; 13. a placement groove; 14. placing the plate; 2. a conductive rod; 21. a limiting ring; 22. a support pillar; 3. a travel bar; 31. mounting a disc; 32. a resistance strain gauge; 33. a chute; 34. a magnet block; 4. a support bar; 41. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an engine pressure sensor of adjustable pressure measurement scope, including pressure sensor body 1, display screen 11 is installed by the position of one side in the top of pressure sensor body 1, display screen 11 can show the pressure value that detects the engine, the one end of pressure sensor body 1 is provided with cable 12, cable 12 is connected with external power source, thereby can provide the electric energy to pressure sensor body 1, in order to guarantee pressure sensor body 1's normal use, the inside of pressure sensor body 1 leans on the one end to set up standing groove 13, standing plate 14 is installed to the bottom inner wall of standing groove 13, conducting rod 2 is installed to the corresponding one side inner wall of standing groove 13, the inside of conducting rod 2 can produce electric current, thereby certain voltage produces, can carry out pressure detection to the engine through voltage, the one end of conducting rod 2 is connected with the pressure detector looks electrical connection of the inside of pressure sensor body 1.

The surface mounting of conducting rod 2 has three sets of spacing rings 21, and support column 22 is all installed to three sets of spacing rings 21's bottom, and three sets of support columns 22's bottom all is fixed mutually with the top corresponding position of placing board 14, and three sets of spacing rings 21 and three sets of support columns 22's setting can effectively support conducting rod 2 to make placing in the inside of standing groove 13 that conducting rod 2 can be stable.

Pressure sensor body 1's top is provided with three traveling rods 3 by the position activity of one side, and the mounting disc 31 is all installed to three traveling rods 3's of group bottom, resistance strain gauge 32 is all installed to three group's mounting disc 31's bottom, three resistance strain gauge 32 of group are located the conducting rod 2 and set up directly over, and three resistance strain gauge 32's of group bottom surface is the arc setting, spout 33 has all been seted up to three group's traveling rods 3's surface, and three group's spout 33's top inner wall and bottom inner wall all are provided with magnet piece 34, pressure sensor body 1's top is all seted up by three group's traveling rods 3's of group position and is run through the groove, and three group's traveling rods 3 run through in the top inner wall of standing groove 13 through the groove respectively through the groove.

The top of pressure sensor body 1 is by corresponding one side that corresponds carriage release lever 3 all installing bracing piece 4, and corresponds one side of bracing piece 4 and all install fixed plate 41 by the position on top, and three groups of fixed plates 41 are ironwork, and the corresponding one end of three groups of fixed plates 41 stretches into the inside that corresponds spout 33 respectively, and corresponds fixed plate 41 and be the sliding connection setting with corresponding spout 33 respectively.

When using, when the pressure measuring range of the pressure sensor body 1 needs to be enlarged, the user can move the corresponding movable rod 3 downward, thereby making the corresponding mounting plate 31 move downward, thereby making the corresponding resistance strain gauge 32 move downward, thereby making the bottom surface of the corresponding resistance strain gauge 32 contact with the outer surface of the conductive rod 2, thereby making the resistance inside the conductive rod 2 larger, because the conductive rod 2 is arranged unidirectionally, thereby making the arrangement of the conductive rod 2 equivalent to a series circuit, and the current amounts in the series circuit are the same, it is known according to ohm's law that the resistance is larger, the voltage of both end loads is also larger, thereby increasing the pressure measuring range, when the corresponding movable rod 3 moves downward, the bottom end of the corresponding fixed plate 41 is separated from the magnet block 34 arranged on the inner wall of the bottom end inside the corresponding chute 33, thereafter, the corresponding fixed plate 41 is moved correspondingly in the inside of the corresponding chute 33, until the top end of the corresponding fixed plate 41 is adsorbed and fixed to the magnet block 34 arranged on the inner wall of the top end of the corresponding chute 33, thereby making the corresponding movable rod 3 be able to fix the pressure sensor body 1, thereby increasing the pressure measuring range of the pressure sensor body 1, thereby, and making the pressure sensor body have three pressure measuring range adjustable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an engine pressure sensor of adjustable pressure range, includes pressure sensor body (1), its characterized in that: the utility model discloses a pressure sensor, including pressure sensor body (1), standing groove (13) have been seted up by one end to the inside of pressure sensor body (1), the bottom inner wall of standing groove (13) is installed and is placed board (14), conducting rod (2) are installed to the corresponding one side inner wall of standing groove (13), the top of pressure sensor body (1) is provided with three carriage release levers (3) by the position activity of one side, and the bottom of three carriage release levers (3) all installs mounting disc (31), three groups resistance strain gauge (32) are all installed to the bottom of mounting disc (31), and spout (33) have all been seted up to the surface of three carriage release levers (3), and the top inner wall and the bottom inner wall of three group spout (33) all are provided with magnet piece (34), bracing piece (4) are all installed by corresponding one side of corresponding carriage release lever (3) to the top of pressure sensor body (1), and fixed plate (41) are all installed by the position on top to the corresponding one side of corresponding bracing piece (4).

2. The engine pressure sensor with adjustable pressure range according to claim 1, wherein: the pressure sensor is characterized in that a display screen (11) is installed at a position, close to one side, of the top end of the pressure sensor body (1), and a cable (12) is arranged at one end of the pressure sensor body (1).

3. The pressure range adjustable engine pressure sensor according to claim 1, wherein: the surface mounting of conducting rod (2) has three sets of spacing rings (21), and support column (22) are all installed to the bottom of three sets of spacing rings (21), three sets the bottom of support column (22) all is fixed mutually with the top corresponding position of placing board (14).

4. The engine pressure sensor with adjustable pressure range according to claim 1, wherein: the corresponding ends of the three groups of fixing plates (41) respectively extend into the corresponding sliding chutes (33), and the corresponding fixing plates (41) are respectively in sliding connection with the corresponding sliding chutes (33).

5. The engine pressure sensor with adjustable pressure range according to claim 1, wherein: the top of pressure sensor body (1) leans on the position of three movable rod groups (3) to all seted up and run through the groove, and just three movable rod groups (3) run through in the top inner wall of standing groove (13) through the groove that runs through respectively.

6. The engine pressure sensor with adjustable pressure range according to claim 1, wherein: the three groups of resistance strain gauges (32) are arranged right above the conductive rod (2), and the bottom surfaces of the three groups of resistance strain gauges (32) are all arranged in an arc shape.